The survey, which polled 12 states holding primaries between March 1 and March 8, also showed Sanders leading in his home state of Vermont with 86 percent.

The Massachusetts presidential primary is set for March 1.

The survey was conducted for American Family Voices, a liberal nonprofit.

The poll interviewed likely Democratic primary voters from Feb. 14 to Feb. 16. About 538 people were interviewed in Massachusetts, with automated phone calls to landlines and "online interviews of cell phone only respondents," according to Public Policy Polling.

The poll has a margin of error of plus or minus 4.2 percent in Massachusetts.

While likely voters believed Clinton is stronger on foreign policy and trusted to improve race relations, they also believed Sanders is trusted to crack down on Wall Street and "pursue policies that raise the incomes of average Americans."

Seventy-five percent of likely Massachusetts Democratic primary voters said they had a favorable opinion of Sanders, versus a 14 percent unfavorable rating. Likely voters said they had a 60 percent favorable rating and a 29 percent unfavorable rating.

In the other states, Clinton commanded leads, including double-digit ones in nine states.

"Clinton is benefiting in these states from overwhelming African American support. She leads by anywhere from 40-62 points among black voters in the nine of these states that have more black voters than the national average," Public Policy Polling said in a statement accompanying the poll.